Notes: Qualifying times based on 4-lap (10 mile) distance.Jerry Unser died May 17 from burns received in an accident on May 2.Fireproof driver uniforms became mandatory after Unser's accident.Bob Cortner was killed in an accident in practice on May 19.Although this race was not conducted under Formula One regulations, it awarded points towards the World Drivers Championship.All 16 running cars were allowed to complete the 500-mile distance, with McWithey finishing nearly 12 minutes after Ward. Time of race: 03:40:49 Average Speed: 135.857 MPH Pole Speed: 246.73 seconds Race Purse: $ 338,100